Since mobile phones are usually small in size and convenient to carry, it is impractical to scan candidates on a large area before the exam to prevent them from using their mobile phones to seek help from better technical departments. Because university teaching buildings are usually large, the use of large-scale mobile phone signal interference equipment usually requires coordination with the local radio management committee. Coordination is inconvenient, and the comprehensive use cost is high. The plug-and-play small range used in the classroom Cell Phone Jammer Schematic is welcomed by colleges and universities because of its convenient use and storage. The lifespan of mobile phone jammers depends entirely on the innovation of mobile phone technology. Generally, interference devices are backward compatible, but due to the leapfrog development of my country's mobile phone industry in recent years, it only took about 5 years to go from 3C to 4G. These 3C mobile phone signal jammers have little effect in the face of the increasingly popular 4G mobile phones. It quickly became a display. To make matters worse, the 5C era has begun, and 4G jammers have not yet become widespread. cell phone jammer Mainly near the bedroom, the opening time is a certain period of time, not the whole day, and the use time during the exam is slightly longer than usual.
The mobile phone jammer is also one of the necessary equipment on the test site. You cannot use the phone normally by blocking the phone signal. The government investigates fraud. Through such a device, it is a very scientific and reasonable device. There are many advantages. According to time, I will use this Cell Phone Jammer Schematic . The signal blocking function is installed from the beginning of the test to the end of the test. This can effectively prevent fraud. After the test, it does not affect the normal use of the mobile phone. Jammer is an item to prevent cheating. This device can change the signal transmission of the communication device. In the information age,